John Riordan: Echoes of US concussion woe coming down Irish tracks

Generally, the NFL has moved on from the PR crises of the mid-2010s. Are those days ahead for rugby?

BANGED UP: Quarterback Tua Tagovailoa of the Miami Dolphins sits on the turf during the first half of the game against the Buffalo Bills at Hard Rock Stadium last weekend. 

On Saturday, I was walking through sunny, bustling Greenwich Village with a great old friend from the newspaper trade. He's never off duty, always peppering you with questions and offering his own analysis.

"What about concussion in sport? That's getting to be a huge story back home," he proffered as we navigated the tourists and oddballs of Washington Square Park and Bleecker Street.